目录L10嘉泰姆

1.产品概述                       2.产品特点L10嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 L10嘉泰姆
5.产品封装图                     6.电路原理图                   L10嘉泰姆
7.功能概述                        8.相关产品L10嘉泰姆

 L10嘉泰姆

一,产品概述(General Description)   L10嘉泰姆

    The CXSD61036 is high efficiency synchronous,PWM step-downL10嘉泰姆
DC/DC converters working under an input voltageL10嘉泰姆
range of 2.5V to 5.5V. This feature makes the CXSD61036 suitableL10嘉泰姆
for single Li-lon battery-powered applications.100% duty cycleL10嘉泰姆
capability extends battery life in portable devices, while the quiescentL10嘉泰姆
current is 200 A with no load, and drops to < 1 A in shutdown.L10嘉泰姆
       The internal synchronous switch is  desired to increase efficiencyL10嘉泰姆
without an external Schottky diode. The 1.4 MHz fixed switchingL10嘉泰姆
frequency allows the using of tiny,low profile inductors and ceramicL10嘉泰姆
capacitors,which minimized overall solution footprintL10嘉泰姆
        The CXSD61036 converters are available in the industry standardL10嘉泰姆
SOT-23-5 power packages (or upon request)L10嘉泰姆
二.产品特点(Features)L10嘉泰姆

1.)Up to 95% EfficiencyL10嘉泰姆
2.)Current mode operation for excellent line and loadL10嘉泰姆
     transient responseL10嘉泰姆
3)Low quiescent current: 230 UAL10嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35L10嘉泰姆
5)Output voltage 5.5V 0.6VL10嘉泰姆
6)Automatic PWM/PFM mode switchingL10嘉泰姆
7)No Schottky diode requiredL10嘉泰姆
8)1.4MHz fixed frequency switchingL10嘉泰姆
9)Short-Circuit protectionL10嘉泰姆
10)Shutdown quiescent current: < 1 UAL10嘉泰姆
11)Low profile SOT-23-5 package (lead-freeL10嘉泰姆
12)packaging is now available)L10嘉泰姆
三,应用范围 (Applications)L10嘉泰姆
Digital cameras and MP3L10嘉泰姆
Palmtop computers / PDAsL10嘉泰姆
Cellular phonesL10嘉泰姆
Wireless handsets and DSL modemsL10嘉泰姆
PC cardsL10嘉泰姆
Portable media playersL10嘉泰姆
四.下载产品资料PDF文档L10嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！L10嘉泰姆

 L10嘉泰姆

五,产品封装图 (Package)L10嘉泰姆

L10嘉泰姆

六.电路原理图L10嘉泰姆

L10嘉泰姆
L10嘉泰姆
七,功能概述L10嘉泰姆

INDUCTOR SELECTIONL10嘉泰姆

For most applications, the value of the inductor will fall in the range of 1μH to 4.7μH. Its value isL10嘉泰姆
chosen based on the desired ripple current. Large value inductors lower ripple current and smallL10嘉泰姆
value inductors result in higher ripple currents. Higher VIN or VOUT also increases the rippleL10嘉泰姆

current as shown in equation 1. A reasonable starting point for setting ripple current is
IL =240mA (40% of 600mA).L10嘉泰姆
The DC current rating of the inductor should be at least equal to the maximum load current plusL10嘉泰姆
half the ripple current to prevent core saturation. Thus, a 720mA rated inductor should beL10嘉泰姆
enough for most applications (600mA + 120mA). For better efficiency, choose a low DC-resistanceL10嘉泰姆
inductor.L10嘉泰姆
Different core materials and shapes will change the size/current and price/current relationship ofL10嘉泰姆
an inductor. Toroid or shielded pot cores in ferrite or permalloy materials are small and don’tL10嘉泰姆
radiate much energy, but generally cost more than powdered iron core inductors with similarL10嘉泰姆
electrical characteristics. The choice of which style inductor to use often depends more on theL10嘉泰姆

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036L10嘉泰姆

requires to operate. Table 1 shows some typical surface mount inductors that work well inL10嘉泰姆
八,相关产品                 更多同类产品.......L10嘉泰姆

共有条评论 用户名: 密码: 验证码: 匿名发表